These nations were left to test the Israelites, to find out whether they would keep the commandments of the LORD, which He had given their fathers through Moses.
We are here told what remained of the old inhabitants of Canaan. 1. There were some of them that kept together in united bodies, unbroken (Jdg 3:3): The five lords of the Philistines, namely, Ashdod, Gaza, Askelon, Gath, and Ekron, Sa1 6:17.
Commenting on Judges 3:1-7
And they were to prove Israel by them,.... They were left in the land, as to inure them to war, and try their courage, so to prove their faithfulness to God: to know whether they would hearken to the commandments, of the Lord, which he commanded their fathers by the hand of Moses; even all the commandments of the Lord delivered to them by Moses...
Jdg 3:3-4 The enumeration of the different nations rests upon Jos 13:2-6, and, with its conciseness and brevity, is only fully intelligible through the light thrown upon it by that passage. The five princes of the Philistines are mentioned singly there. According to Jos 13:4., “all the Canaanites and the Sidonians and the Hivites,” are the Canaanitish tribes dwelling in northern Canaan, by the Phoenician coast and upon Mount Lebanon.
Commenting on Judges 3:3-4